Home / 120,002.64-165,604.92-66,289.08

Finding the Fourth Proportional to 120,002.64, 165,604.92 and 66,289.08

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Solution

The fourth proportional to 120,002.64, 165,604.92 and 66,289.08 is: 91,479.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,002.64 : 165,604.92 = 66,289.08 : x
  2. Step 2: Convert to fraction form
    120,002.64/165,604.92 = 66,289.08/x
  3. Step 3: Cross multiply
    120,002.64x = 165,604.92 × 66,289.08
  4. Step 4: Simplify right side
    120,002.64x = 10,977,797,790.27
  5. Step 5: Solve for x
    x = 10,977,797,790.27/120,002.64
  6. Step 6: Final answer
    x = 91,479.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.